Inertia-governor.



'PATENTE'D' DEC. 17, 1907.

H. LENfIZ & w. VOIT. INERTIA GOVERNOR.

APPLICATION FILED AUG. 1, 1906.

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ham [Jams No. 874,214. PATENTED DEC; 17, 1907.

' H. LENTZ & W. VOIT.

INERTIA GOVERNOR, APPLICATION FILED 15116.1, 1906.

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Mam/[6050 r PATENTED DEC. 17, 1907. H. LENTZ & W. VOIT. INERTIAGOVERNOR. APPLIUATION FILED AUG.1, 1906.

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nam kaafs' ATTOF/Vt" 65 No. 874,214. PATENTED DEC. 17, 1907. HY LENTZ &w VOIT INBRTIA GOVERNOR.

APPLIOATION FILED AUG-1. 1906.

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' 35 drawings in which: i

PA ENT OFFICE.

HUGO LENTZA, organism; NEAVYRAIBERLIVN, AND WI'LHELM vorr, or BERLIN,GERMANY.

mi eu-s ia nt alltukoin it concern:

Be it known that we, Hueo WILHELM Vorr, a subject of the German Emire,and resident of Grunewaldstra'sse, erlin, (Steglitm) in the Empire ofGermany,

engineer, have invented certain newand-usei0 ful Improvements Relatingto Inertia-Governors, of which the following is a specification. J

fluenced by centrifugal weights, "and the means for adjusting thegovernor'for various speeds of the engine consist in varying the tensionof the spring, this being effected by bending the-portionthereof'connected with l the shaft, an adjustable radialpin' pressingagainst said portion. A p According to this inventio'n themeans forvarying the tension of the spring are such as to allow said tensiontobevaried both when theengine isfstopped and when it'is running.

" This'object is attained by means ofthe mechanism represented" in theaccompanying Figure 1 illustrates a front elevation of the I governor,partly in section, with a mechanism for varying" the tension of thespring when the engine is'stofpp'ed; Figs. 2 and 3 ,40 show in frontview and longitudinal section respectively, a mechanism for regulatingthe governor. when running. Figs. 4 and 5 illustrate a-rnodifiedstructure for fixing one end of the spring. Fig. 6'shows a modified formof mechanism for regulating when run- Iii the drawings 5 a is .theshaft,fb is a double arml eyedf upon thejshaft, c c are the'gov-.ornor'pendulums, d are the spindles by means ofwhich the pendfuluinsare connected to the fixed part b in such a manner that they are able torotate around them. The centrifugal pendulums c c are connected by meansof the pins 0 to the connecting rod f.

j speeification o t Letters, Patent.

nmannaa A'u ua 1. 1906. Serial No. 328.721.

LENTZ', a-sub- Q" ect of the German 'Emp1re,and 'res1den'tof 123.Kurfiirstendamm, Halensee, near Ber-" 5' lin, inthe Empire of Germany,engineer, and" to the'inven'tio n' the governor Patented Dec. 17, 1907.

his an inertia ring to which the rods f f are fitted by means ofspindles g.

i is a flexion spring, circular or spiral in form, which is fixed to oneextremity iby the inertia ring it and by. the other extremity to the armb, which is in one piece with the arm I). The inertia ring it is mountedin such a manner that itis capable of rotating around the shaft a to theextent permitted of by its dependence upon the pendulums c c. Thecentrifugal forces developed by the weights'of the pendulums c a duringthe retation of the axial governor cause the inertia ring it to rotaterelatively to the shaft a and extend the spring '1'. until the tensionof the spring balances these centrifugal forces. The inertia ring isconnected, by means of an appropriate sleeve, to.any member to becontrolled, such as the eccentric sheaf 8, shown in Fig. 3, actuatingthe distributing valve of the machine. The position of this eccentric isthus changed together with that. f of the inertia ring, and thedistributing valve A tremity i of which is formed in the shape of a hook(Figs. 1 and 2) which bears against the knife edge j.

k is a'screw threaded pin which at a slight distance from the extremityof the spring i presses against the spring and is supported in thetube 1) fixed on the shaft a.

recourse is had to the form of device represented in Figs. 2 and 3. Theshaft is bored and the hole drilled in the part b in which the pin it isplaced is prolonged as far as the said bore in theshaft. The pin 761 isof such a length that it projects into the longitudinal bore of theshaft; m is a pin one extremity of which is provided with a groove n,the

This pin may be adjusted by turning the nut base of which is cuneiformand constitutes a 1 the cuneiform pin.

- with a slot in which the extremit 'n' there is fixed a sleeve nprovided with wedge n. The in k enters the groove n and constitutes t erectilinear guidancefor the pin m. 0' is a rod guided in a straight line1n a fixed part of the machine and movable in the direction of itslength; this rod is screw threaded and rotatablycoupled with a handWheel q (Fig. 3) which by its rotation displaces the rod 0 andconsequently the cuneiform pin m, 'n, in the direction of its len th, insuch a manner that the pin 7c is radially displaced by means of thecuneiform surface a thereby effecting the variation of the tension ofthe spring.

' A different method of suspending the spring is illustrated in Figs. 4and 5. c is a bolt supported in the fixed part b and w is a leverconnected with this bolt and capable of rotating with it; This bolt isprovided of the spring 1' is fixed. The lever w, whic is fixed on thebolt, bears against the ink or k which may be adjusted either as 1n Fig-1 by means of a nut (Fig. 4) or as in Figs. 2 and 3 by means of a wedge"m (Fig. 5.) In cases in which the shaft of the machine cannot be bored,in order that it ma be possible to vary the number of revolutlons'evenduring running, the construction shown in Fig. 6 is adopted] In the/shaft a there is formed a groove :1; and in this groove the wedge 'n, actuating the pin is is movable. To the wedge two collars 1- 1". In orderto displace the wedge n a ring may be arranged between,

the collars r 1-, said ring engaging by means oftrunnions in aregulating lever not shown.

The arrangements described which increase the tcnsion of the spring bybending it, permit of obtaining a greater variation of tension of saidspring with a smaller effort.

- The inertia governor is applicable to the speed regulation of anyengine andpermits of varying automatically the position of adistributing member, or the like, connected with said governor, andthereby the number of revolutions of the engine.

Having now particularly described and ascertained the nature of ourinvention and in what manner the same is to be performed, we

declare that what we claim is l. 'In combination with an engine shaft,'a

governor comprising a double arm. rigidly keyed upon the shaft, twoweights pivoted to the extremities of said double arm, an inertia ringsurrounding theweights and connected therewith, a flexion spring havingone end rigidly fixed to the inertia ring and the other to the doublearm, and means for varying the tension of the spring, substantially inthe manner and for the purpose specified.

p is a nut provided with- 2. In combination with an engine shaft, agovernor com rising a double arm rigidly keyed upon t e. shaft, twopendulums pivoted to the extremities of said double arm, an inertia ringsurrounding the weights and connected therewith, a flexion spring havingone end rigidly fixed to the inertia ring and the other to the doublearm, links connecting the ring with the pendulums and means for varyingthe tension of the spring. I

3. In combination with an engine shaft, a governor comprising a doublearm frigidly keyed upon the shaft, two weights pivoted to theextremities of said double arm, an inertia ring surrounding the weightsand connected therewith, a fiexion spring having one end rigidly fixedto the inertia ring and the other to the double arm, links connectingthe ring with the'weights, and means for varying the tension ofthe-spring, consisting of a movable pin radially guided in atubular.

rigidly fixed to the inertia ring an the other to the double arm, linksconnecting the ring with the weights, means for varying the tension ofthe spring, consisting of a movable in radially guided in a tubularportion rigidlyfixed to the double arm, one extremity of said pinbearing against the spring, and

means fordis lacin said in radiall 5. In combination with an, engineshaft, a

governor comprising two arms rigidly keyed upon the shaft, a knife edgefitted to the ex tremity of one arm, two pendulums pivoted to theextremities of said arms, an.1nertia ring, a ilexion spring attached atone extremity to the inertia ring, the other extremity being hook-shapedand bearing against the knife edge .of one arm, links connecting thering with the weights, means for varying the tension of the springconsisting of amovable pin radially guided in a tubular portion rigidlyfixed to the double arm, one extremity of said pin bearing against the sring, and means for displacingsaid pin raially.

6. In combination with an engine shaft, a

governor comprising a double arm rigidly keyed upon the shaft," a boltsupported by .one arm, a lever connected with said bolt,

two weights pivoted to the extremities of. the

double arm, an .inertia ring surroundingthe weights and j-connectedtherewith, a flexion spring having one extremity rigidly fixed to of thespring consisting of a movable pin rathe inertia ring and the other in aslot of the bolt, links connecting the ring with the weights, and meansfor varying-the tension 1 placed our hand et Berlin this 28th day 0.June 1906.

HUGO 1311mm V WfHliHELh I VQl/i. In the ptsermo 0f-- WOLfiEMAR HAUPT,HENRY HASPER.

dially guided in a tubular portion rigidly fixed to the double arm, oneextremity of? said pin bearing against the s ring. i

In testimony whereof we lave hereunto l

